Phillip c



(No Model.)

P. C. CLOSE.

- PITMAN.

'fb KJU @ai WZ/'Zasses f UNITED STATES PATENT OFFICE.

PHILLIP C. CLOSE, OF AUGUSTA, GEORGIA.

PITMAN.

SPECIFICATION forming part of Letters Patent No. 2337.557. dated March9, 1886,A

Application tiled October 19, 1885. Serial No. 180,244.

To aZZ whom it may concern:

Be it known that I. PHILLIP C. CLOSE, a citizen of the United States,residing at Augusta, in the county of Richmond and State of Georgia,have invented certain new and useful Improvements in Pitmen, of whichthe following is a specification, reference being had therein to theaccompanying drawings.

My invention relates to pitmen suitable for harvesters, saw-mills,androther machinery in which oil is made to automatically reach thejournalebearings from reservoirs formed within the pitmen; and theobjects of my invention are to produce an inexpensive, efficient, anddurable selfoiling pitman-rod, provided with perforated plates andabsorbent material to retard and regulate the tlow of oil to thebearings.

The invention will first be describedinconnection with the. drawings,and then be pointed out in claims.

In the drawings, Figure l is a longitudinal section of the pitman. Fig.2 is also a longitudinal section taken at right angles to Fig. 1. Fig. 3is a longitudinal section of the pitinan-rod with the end bearingsremoved.

The pitman-rod A is made tubular, and has secured within atightly-fitting partition, a, either half-way of the length of the tubeor near either end, but preferably nearerits upper end, to form twoindependent chambers, a, to contain oil. Each chamber is provided withan oil-hole closed by a thumb-screw, a', or any other suitable air-tightstopper.

To partly check the flow ofoil toward the outer end of the oil-cha mber,there is packed thereintoW, Wool, or preferably sponge, IJ, betweendisks c, of perforatedsheet metal or of woven wire, the edge of theinner disk resting either upon a shoulder, a3, formed within the hollowpitman or upon pins a4, driven transversely across said hollow rod.

To retain the perforated outer disk c upon the sponge b, recessed plugsd, of bronze, are placed thereon, and said plugs have a small vent orhole, d2, for the oil to pass through and reach the journals of thepitman. Said hole d2 is drilled either axially or diagonally througheach plug. The upper end of the (No model.)

pitman-rod has screwed thereon the T-head or bearing B, to receive thewrist-pin projecting', as usual, from the face of the crank-wheel. Atthe opposite end' of the pitman-rod is placed a` steel ball, E, restingupon the lower plug, d, or upon the end of the tube. It is retained inposition by the lower box, B2, screwed on the end of the pitman-rod. Theball has small grooves e in its periphery, to conduct oil from thereservoir upon the frictional surfaces of the lower box. It is alsoprovided with a diametrical hole to receive the connecting-pin F,projecting from an arm, F, secured to thecutter-bar of a mowing-machineor other part of a machine carrying a pitman. By this construction theoil-chambers can contain enough oil for at least one day in use. Thespongepacking arrests allthe impurities that may be in the oil, andchecks its spur-ting against the end bearings under the rapidreciprocating motion to wnich 1t is subjected.

Having now fully described my invention, I claiml. The combination of atubular pitmanrod and its transverse partition a with perl'orated disksc and packing b at each end, substantially as and for the purposedescribed.

2. The combination of a tubular pitmanrod and its transverse partitionwith the perforated disks c, packing b, and perforated plug d at eachend, substantially as and for the purpose described.

3. The combination of a tubular pitmanrod, its transverse partition,perforated disk c, packing b, and perforated plug d with adiametricaily-bored ball, E, having peripheral grooves, substantially asand for the purpose described.

4. The combination of a tubular pitmanrod with a transverse partition,a, therein, substantially as and for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses.

PHILLIP C.v CLOSE.

Witnesses: l

CHARLES W. DoUGH'rY, T. S. J oNEs.

